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I am having some trouble solving a problem related to braking forces. The assignment is this:

A birdwatcher sees an egg falling from a 20 m tall tree. (Though the 20 m might not have anything to do with this particular task because it is part of a longer question).

The egg strikes the ground and is brought to a stop in a distance of 1 mm. Assuming a mass of 20 g for the egg calculate the force required. (You may assume a constant braking force. Use g = 10 m/s^2)

I was going to calculate the eggs force (F = 0,02 kg * 10 m/s^2 = 0,2 N)

Because in order for the egg to become stationary, the forces on it must be equal in magnitude and have opposite directions (and this is the force on the egg towards the earth).

I am not sure what to do about the 1 mm though?

Thanks for your help

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# Homework Help: Question about braking force

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